r0 = syz_io_uring_setup(0x6a04, &(0x7f00000000c0), &(0x7f0000ff5000/0x1000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000000080), &(0x7f0000000040))
io_uring_register$IORING_UNREGISTER_EVENTFD(r0, 0x5, 0x0, 0x8)